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/**

* Marlin 3D Printer Firmware

* Based on Sprinter and grbl.

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation, either version 3 of the License, or

* (at your option) any later version.

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

* You should have received a copy of the GNU General Public License

* along with this program. If not, see <http://www.gnu.org/licenses/>.

/**

* Configuration_adv.h

* Advanced settings.

* Only change these if you know exactly what you're doing.

* Some of these settings can damage your printer if improperly set!

* Basic settings can be found in Configuration.h

#ifndef CONFIGURATION_ADV_H

#define CONFIGURATION_ADV_H

/**

* ***********************************

* ** ATTENTION TO ALL DEVELOPERS **

* ***********************************

* You must increment this version number for every significant change such as,

* but not limited to: ADD, DELETE RENAME OR REPURPOSE any directive/option.

* Note: Update also Version.h !

#define CONFIGURATION_ADV_H_VERSION 010100

// @section temperature

//===========================================================================

//=============================Thermal Settings ============================

//===========================================================================

#if DISABLED(PIDTEMPBED)

#define BED_CHECK_INTERVAL 5000 // ms between checks in bang-bang control

#if ENABLED(BED_LIMIT_SWITCHING)

#define BED_HYSTERESIS 2 // Only disable heating if T>target+BED_HYSTERESIS and enable heating if T>target-BED_HYSTERESIS

#endif

/**

* Thermal Protection protects your printer from damage and fire if a

* thermistor falls out or temperature sensors fail in any way.

* The issue: If a thermistor falls out or a temperature sensor fails,

* Marlin can no longer sense the actual temperature. Since a disconnected

* thermistor reads as a low temperature, the firmware will keep the heater on.

* The solution: Once the temperature reaches the target, start observing.

* If the temperature stays too far below the target (hysteresis) for too long (period),

* the firmware will halt the machine as a safety precaution.

* If you get false positives for "Thermal Runaway" increase THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD

#if ENABLED(THERMAL_PROTECTION_HOTENDS)

#define THERMAL_PROTECTION_PERIOD 40 // Seconds

#define THERMAL_PROTECTION_HYSTERESIS 4 // Degrees Celsius

/**

* Whenever an M104 or M109 increases the target temperature the firmware will wait for the

* WATCH_TEMP_PERIOD to expire, and if the temperature hasn't increased by WATCH_TEMP_INCREASE

* degrees, the machine is halted, requiring a hard reset. This test restarts with any M104/M109,

* but only if the current temperature is far enough below the target for a reliable test.

* If you get false positives for "Heating failed" increase WATCH_TEMP_PERIOD and/or decrease WATCH_TEMP_INCREASE

* WATCH_TEMP_INCREASE should not be below 2.

#define WATCH_TEMP_PERIOD 20 // Seconds

#define WATCH_TEMP_INCREASE 2 // Degrees Celsius

#endif

/**

* Thermal Protection parameters for the bed are just as above for hotends.

#if ENABLED(THERMAL_PROTECTION_BED)

#define THERMAL_PROTECTION_BED_PERIOD 20 // Seconds

#define THERMAL_PROTECTION_BED_HYSTERESIS 2 // Degrees Celsius

/**

* Whenever an M140 or M190 increases the target temperature the firmware will wait for the

* WATCH_BED_TEMP_PERIOD to expire, and if the temperature hasn't increased by WATCH_BED_TEMP_INCREASE

* degrees, the machine is halted, requiring a hard reset. This test restarts with any M140/M190,

* but only if the current temperature is far enough below the target for a reliable test.

* If you get too many "Heating failed" errors, increase WATCH_BED_TEMP_PERIOD and/or decrease

* WATCH_BED_TEMP_INCREASE. (WATCH_BED_TEMP_INCREASE should not be below 2.)

#define WATCH_BED_TEMP_PERIOD 60 // Seconds

#define WATCH_BED_TEMP_INCREASE 2 // Degrees Celsius

#endif

#if ENABLED(PIDTEMP)

// this adds an experimental additional term to the heating power, proportional to the extrusion speed.

// if Kc is chosen well, the additional required power due to increased melting should be compensated.

//#define PID_EXTRUSION_SCALING

#if ENABLED(PID_EXTRUSION_SCALING)

#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)

#define LPQ_MAX_LEN 50

#endif

/**

* Automatic Temperature:

* The hotend target temperature is calculated by all the buffered lines of gcode.

* The maximum buffered steps/sec of the extruder motor is called "se".

* Start autotemp mode with M109 S<mintemp> B<maxtemp> F<factor>

* The target temperature is set to mintemp+factor*se[steps/sec] and is limited by

* mintemp and maxtemp. Turn this off by executing M109 without F*

* Also, if the temperature is set to a value below mintemp, it will not be changed by autotemp.

* On an Ultimaker, some initial testing worked with M109 S215 B260 F1 in the start.gcode

#define AUTOTEMP

#if ENABLED(AUTOTEMP)

#define AUTOTEMP_OLDWEIGHT 0.98

#endif

//Show Temperature ADC value

//The M105 command return, besides traditional information, the ADC value read from temperature sensors.

//#define SHOW_TEMP_ADC_VALUES

/**

* High Temperature Thermistor Support

* Thermistors able to support high temperature tend to have a hard time getting

* good readings at room and lower temperatures. This means HEATER_X_RAW_LO_TEMP

* will probably be caught when the heating element first turns on during the

* preheating process, which will trigger a min_temp_error as a safety measure

* and force stop everything.

* To circumvent this limitation, we allow for a preheat time (during which,

* min_temp_error won't be triggered) and add a min_temp buffer to handle

* aberrant readings.

* If you want to enable this feature for your hotend thermistor(s)

* uncomment and set values > 0 in the constants below

// The number of consecutive low temperature errors that can occur

// before a min_temp_error is triggered. (Shouldn't be more than 10.)

//#define MAX_CONSECUTIVE_LOW_TEMPERATURE_ERROR_ALLOWED 0

// The number of milliseconds a hotend will preheat before starting to check

// the temperature. This value should NOT be set to the time it takes the

// hot end to reach the target temperature, but the time it takes to reach

// the minimum temperature your thermistor can read. The lower the better/safer.

// This shouldn't need to be more than 30 seconds (30000)

//#define MILLISECONDS_PREHEAT_TIME 0

// @section extruder

// extruder run-out prevention.

//if the machine is idle, and the temperature over MINTEMP, every couple of SECONDS some filament is extruded

//#define EXTRUDER_RUNOUT_PREVENT

#define EXTRUDER_RUNOUT_MINTEMP 190

#define EXTRUDER_RUNOUT_SECONDS 30

#define EXTRUDER_RUNOUT_ESTEPS 14 // mm filament

#define EXTRUDER_RUNOUT_SPEED 1500 // extrusion speed

#define EXTRUDER_RUNOUT_EXTRUDE 100

// @section temperature

//These defines help to calibrate the AD595 sensor in case you get wrong temperature measurements.

//The measured temperature is defined as "actualTemp = (measuredTemp * TEMP_SENSOR_AD595_GAIN) + TEMP_SENSOR_AD595_OFFSET"

#define TEMP_SENSOR_AD595_OFFSET 0.0

#define TEMP_SENSOR_AD595_GAIN 1.0

//This is for controlling a fan to cool down the stepper drivers

//it will turn on when any driver is enabled

//and turn off after the set amount of seconds from last driver being disabled again

#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)

#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run

#define CONTROLLERFAN_SPEED 255 // == full speed

// When first starting the main fan, run it at full speed for the

// given number of milliseconds. This gets the fan spinning reliably

// before setting a PWM value. (Does not work with software PWM for fan on Sanguinololu)

//#define FAN_KICKSTART_TIME 100

// This defines the minimal speed for the main fan, run in PWM mode

// to enable uncomment and set minimal PWM speed for reliable running (1-255)

// if fan speed is [1 - (FAN_MIN_PWM-1)] it is set to FAN_MIN_PWM

//#define FAN_MIN_PWM 50

// @section extruder

// Extruder cooling fans

// Configure fan pin outputs to automatically turn on/off when the associated

// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.

// Multiple extruders can be assigned to the same pin in which case

// the fan will turn on when any selected extruder is above the threshold.

#define EXTRUDER_0_AUTO_FAN_PIN -1

#define EXTRUDER_1_AUTO_FAN_PIN -1

#define EXTRUDER_2_AUTO_FAN_PIN -1

#define EXTRUDER_3_AUTO_FAN_PIN -1

#define EXTRUDER_AUTO_FAN_TEMPERATURE 50

#define EXTRUDER_AUTO_FAN_SPEED 255 // == full speed

//===========================================================================

//============================ Mechanical Settings ==========================

//===========================================================================

// @section homing

// If you want endstops to stay on (by default) even when not homing

// enable this option. Override at any time with M120, M121.

//#define ENDSTOPS_ALWAYS_ON_DEFAULT

// @section extras

//#define Z_LATE_ENABLE // Enable Z the last moment. Needed if your Z driver overheats.

// Dual X Steppers

// Uncomment this option to drive two X axis motors.

// The next unused E driver will be assigned to the second X stepper.

//#define X_DUAL_STEPPER_DRIVERS

#if ENABLED(X_DUAL_STEPPER_DRIVERS)

// Set true if the two X motors need to rotate in opposite directions

#define INVERT_X2_VS_X_DIR true

#endif

// Dual Y Steppers

// Uncomment this option to drive two Y axis motors.

// The next unused E driver will be assigned to the second Y stepper.

//#define Y_DUAL_STEPPER_DRIVERS

#if ENABLED(Y_DUAL_STEPPER_DRIVERS)

// Set true if the two Y motors need to rotate in opposite directions

#define INVERT_Y2_VS_Y_DIR true

#endif

// A single Z stepper driver is usually used to drive 2 stepper motors.

// Uncomment this option to use a separate stepper driver for each Z axis motor.

// The next unused E driver will be assigned to the second Z stepper.

//#define Z_DUAL_STEPPER_DRIVERS

#if ENABLED(Z_DUAL_STEPPER_DRIVERS)

// Z_DUAL_ENDSTOPS is a feature to enable the use of 2 endstops for both Z steppers - Let's call them Z stepper and Z2 stepper.

// That way the machine is capable to align the bed during home, since both Z steppers are homed.

// There is also an implementation of M666 (software endstops adjustment) to this feature.

// After Z homing, this adjustment is applied to just one of the steppers in order to align the bed.

// One just need to home the Z axis and measure the distance difference between both Z axis and apply the math: Z adjust = Z - Z2.

// If the Z stepper axis is closer to the bed, the measure Z > Z2 (yes, it is.. think about it) and the Z adjust would be positive.

// Play a little bit with small adjustments (0.5mm) and check the behaviour.

// The M119 (endstops report) will start reporting the Z2 Endstop as well.

//#define Z_DUAL_ENDSTOPS

#if ENABLED(Z_DUAL_ENDSTOPS)

#define Z2_USE_ENDSTOP _XMAX_

#endif

#endif // Z_DUAL_STEPPER_DRIVERS

// Enable this for dual x-carriage printers.

// A dual x-carriage design has the advantage that the inactive extruder can be parked which

// prevents hot-end ooze contaminating the print. It also reduces the weight of each x-carriage

// allowing faster printing speeds. Connect your X2 stepper to the first unused E plug.

//#define DUAL_X_CARRIAGE

#if ENABLED(DUAL_X_CARRIAGE)

// Configuration for second X-carriage

// Note: the first x-carriage is defined as the x-carriage which homes to the minimum endstop;

// the second x-carriage always homes to the maximum endstop.

#define X2_MIN_POS 80 // set minimum to ensure second x-carriage doesn't hit the parked first X-carriage

#define X2_MAX_POS 353 // set maximum to the distance between toolheads when both heads are homed

#define X2_HOME_DIR 1 // the second X-carriage always homes to the maximum endstop position

#define X2_HOME_POS X2_MAX_POS // default home position is the maximum carriage position

// However: In this mode the HOTEND_OFFSET_X value for the second extruder provides a software

// override for X2_HOME_POS. This also allow recalibration of the distance between the two endstops

// without modifying the firmware (through the "M218 T1 X???" command).

// Remember: you should set the second extruder x-offset to 0 in your slicer.

// There are a few selectable movement modes for dual x-carriages using M605 S<mode>

// Mode 0: Full control. The slicer has full control over both x-carriages and can achieve optimal travel results

// as long as it supports dual x-carriages. (M605 S0)

// Mode 1: Auto-park mode. The firmware will automatically park and unpark the x-carriages on tool changes so

// that additional slicer support is not required. (M605 S1)

// Mode 2: Duplication mode. The firmware will transparently make the second x-carriage and extruder copy all

// actions of the first x-carriage. This allows the printer to print 2 arbitrary items at

// once. (2nd extruder x offset and temp offset are set using: M605 S2 [Xnnn] [Rmmm])

// This is the default power-up mode which can be later using M605.

#define DEFAULT_DUAL_X_CARRIAGE_MODE 0

// Default settings in "Auto-park Mode"

#define TOOLCHANGE_PARK_ZLIFT 0.2 // the distance to raise Z axis when parking an extruder

#define TOOLCHANGE_UNPARK_ZLIFT 1 // the distance to raise Z axis when unparking an extruder

// Default x offset in duplication mode (typically set to half print bed width)

#define DEFAULT_DUPLICATION_X_OFFSET 100

#endif //DUAL_X_CARRIAGE

// @section homing

//homing hits the endstop, then retracts by this distance, before it tries to slowly bump again:

#define X_HOME_BUMP_MM 5

#define Y_HOME_BUMP_MM 5

#define Z_HOME_BUMP_MM 2

#define HOMING_BUMP_DIVISOR {2, 2, 4} // Re-Bump Speed Divisor (Divides the Homing Feedrate)

//#define QUICK_HOME //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.

#define QUICK_HOME //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.

// When G28 is called, this option will make Y home before X

//#define HOME_Y_BEFORE_X

// @section machine

#define AXIS_RELATIVE_MODES {false, false, false, false}

// Allow duplication mode with a basic dual-nozzle extruder

//#define DUAL_NOZZLE_DUPLICATION_MODE

// By default pololu step drivers require an active high signal. However, some high power drivers require an active low signal as step.

#define INVERT_X_STEP_PIN false

#define INVERT_Y_STEP_PIN false

#define INVERT_Z_STEP_PIN false

#define INVERT_E_STEP_PIN false

// Default stepper release if idle. Set to 0 to deactivate.

// Steppers will shut down DEFAULT_STEPPER_DEACTIVE_TIME seconds after the last move when DISABLE_INACTIVE_? is true.

// Time can be set by M18 and M84.

#define DEFAULT_STEPPER_DEACTIVE_TIME 120

#define DISABLE_INACTIVE_X true

#define DISABLE_INACTIVE_Y true

#define DISABLE_INACTIVE_Z true // set to false if the nozzle will fall down on your printed part when print has finished.

#define DISABLE_INACTIVE_E true

#define DEFAULT_MINIMUMFEEDRATE 0.0 // minimum feedrate

#define DEFAULT_MINTRAVELFEEDRATE 0.0

// @section lcd

#if ENABLED(ULTIPANEL)

#define MANUAL_FEEDRATE {50*60, 50*60, 4*60, 60} // Feedrates for manual moves along X, Y, Z, E from panel

#define ULTIPANEL_FEEDMULTIPLY // Comment to disable setting feedrate multiplier via encoder

#endif

// @section extras

// minimum time in microseconds that a movement needs to take if the buffer is emptied.

#define DEFAULT_MINSEGMENTTIME 20000

// If defined the movements slow down when the look ahead buffer is only half full

#define SLOWDOWN

// Frequency limit

// See nophead's blog for more info

// Not working O

//#define XY_FREQUENCY_LIMIT 15

// Minimum planner junction speed. Sets the default minimum speed the planner plans for at the end

// of the buffer and all stops. This should not be much greater than zero and should only be changed

// if unwanted behavior is observed on a user's machine when running at very slow speeds.

#define MINIMUM_PLANNER_SPEED 0.05// (mm/sec)

// Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.

#define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]

// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)

#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)

// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)

//#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps

// uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro

//#define DIGIPOT_I2C

// Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8

#define DIGIPOT_I2C_NUM_CHANNELS 8

// actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS

#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}

//===========================================================================

//=============================Additional Features===========================

//===========================================================================

#define ENCODER_RATE_MULTIPLIER // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly

#define ENCODER_10X_STEPS_PER_SEC 75 // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value

#define ENCODER_100X_STEPS_PER_SEC 160 // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value

//#define CHDK 4 //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/

#define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again

// @section lcd

// Include a page of printer information in the LCD Main Menu

//#define LCD_INFO_MENU

#if ENABLED(SDSUPPORT)

// Some RAMPS and other boards don't detect when an SD card is inserted. You can work

// around this by connecting a push button or single throw switch to the pin defined

// as SD_DETECT_PIN in your board's pins definitions.

// This setting should be disabled unless you are using a push button, pulling the pin to ground.

// Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).

#define SD_DETECT_INVERTED

#define SD_FINISHED_STEPPERRELEASE true //if sd support and the file is finished: disable steppers?

#define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.

#define SDCARD_RATHERRECENTFIRST //reverse file order of sd card menu display. Its sorted practically after the file system block order.

// if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.

// using:

//#define MENU_ADDAUTOSTART

// Show a progress bar on HD44780 LCDs for SD printing

//#define LCD_PROGRESS_BAR

#if ENABLED(LCD_PROGRESS_BAR)

// Amount of time (ms) to show the bar

#define PROGRESS_BAR_BAR_TIME 2000

// Amount of time (ms) to show the status message

#define PROGRESS_BAR_MSG_TIME 3000

// Amount of time (ms) to retain the status message (0=forever)

#define PROGRESS_MSG_EXPIRE 0

// Enable this to show messages for MSG_TIME then hide them

//#define PROGRESS_MSG_ONCE

#endif

// This allows hosts to request long names for files and folders with M33

//#define LONG_FILENAME_HOST_SUPPORT

// This option allows you to abort SD printing when any endstop is triggered.

// This feature must be enabled with "M540 S1" or from the LCD menu.

// To have any effect, endstops must be enabled during SD printing.

//#define ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED

#endif // SDSUPPORT

// for dogm lcd displays you can choose some additional fonts:

#if ENABLED(DOGLCD)

// save 3120 bytes of PROGMEM by commenting out #define USE_BIG_EDIT_FONT

// we don't have a big font for Cyrillic, Kana

//#define USE_BIG_EDIT_FONT

// If you have spare 2300Byte of progmem and want to use a

// smaller font on the Info-screen uncomment the next line.

//#define USE_SMALL_INFOFONT

#endif // DOGLCD

// @section safety

// The hardware watchdog should reset the microcontroller disabling all outputs,

// in case the firmware gets stuck and doesn't do temperature regulation.

#define USE_WATCHDOG

#if ENABLED(USE_WATCHDOG)

// If you have a watchdog reboot in an ArduinoMega2560 then the device will hang forever, as a watchdog reset will leave the watchdog on.

// The "WATCHDOG_RESET_MANUAL" goes around this by not using the hardware reset.

// However, THIS FEATURE IS UNSAFE!, as it will only work if interrupts are disabled. And the code could hang in an interrupt routine with interrupts disabled.

//#define WATCHDOG_RESET_MANUAL

#endif

// @section lcd

// Babystepping enables the user to control the axis in tiny amounts, independently from the normal printing process

// it can e.g. be used to change z-positions in the print startup phase in real-time

// does not respect endstops!

//#define BABYSTEPPING

#if ENABLED(BABYSTEPPING)

#define BABYSTEP_XY //not only z, but also XY in the menu. more clutter, more functions

//not implemented for deltabots!

#define BABYSTEP_INVERT_Z false //true for inverse movements in Z

#define BABYSTEP_MULTIPLICATOR 1 //faster movements

#endif

// @section extruder

// extruder advance constant (s2/mm3)

// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2

// Hooke's law says: force = k * distance

// Bernoulli's principle says: v ^ 2 / 2 + g . h + pressure / density = constant

// so: v ^ 2 is proportional to number of steps we advance the extruder

//#define ADVANCE

#if ENABLED(ADVANCE)

#define EXTRUDER_ADVANCE_K .0

#define D_FILAMENT 2.85

#endif

// Implementation of a linear pressure control

// Assumption: advance = k * (delta velocity)

// K=0 means advance disabled. A good value for a gregs wade extruder will be around K=75

//#define LIN_ADVANCE

#if ENABLED(LIN_ADVANCE)

#define LIN_ADVANCE_K 75

#endif

// @section leveling

// Default mesh area is an area with an inset margin on the print area.

// Below are the macros that are used to define the borders for the mesh area,

// made available here for specialized needs, ie dual extruder setup.

#if ENABLED(MESH_BED_LEVELING)

#define MESH_MIN_X (X_MIN_POS + MESH_INSET)

#define MESH_MAX_X (X_MAX_POS - (MESH_INSET))

#define MESH_MIN_Y (Y_MIN_POS + MESH_INSET)

#define MESH_MAX_Y (Y_MAX_POS - (MESH_INSET))

#endif

// @section extras

// Arc interpretation settings:

#define ARC_SUPPORT // Disabling this saves ~2738 bytes

#define MM_PER_ARC_SEGMENT 1

#define N_ARC_CORRECTION 25

// Support for G5 with XYZE destination and IJPQ offsets. Requires ~2666 bytes.

//#define BEZIER_CURVE_SUPPORT

const unsigned int dropsegments = 5; //everything with less than this number of steps will be ignored as move and joined with the next movement

// @section temperature

// Control heater 0 and heater 1 in parallel.

//#define HEATERS_PARALLEL

//===========================================================================

//================================= Buffers =================================

//===========================================================================

// @section hidden

// The number of linear motions that can be in the plan at any give time.

// THE BLOCK_BUFFER_SIZE NEEDS TO BE A POWER OF 2, i.g. 8,16,32 because shifts and ors are used to do the ring-buffering.

#if ENABLED(SDSUPPORT)

#define BLOCK_BUFFER_SIZE 16 // SD,LCD,Buttons take more memory, block buffer needs to be smaller

#else

#define BLOCK_BUFFER_SIZE 16 // maximize block buffer

#endif

// @section serial

// The ASCII buffer for

// The ASCII buffer for s

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/**
 * Marlin 3D Printer Firmware
 * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

/**
 * Configuration_adv.h
 *
 * Advanced settings.
 * Only change these if you know exactly what you're doing.
 * Some of these settings can damage your printer if improperly set!
 *
 * Basic settings can be found in Configuration.h
 *
 */
#ifndef CONFIGURATION_ADV_H
#define CONFIGURATION_ADV_H

/**
 *
 *  ***********************************
 *  **  ATTENTION TO ALL DEVELOPERS  **
 *  ***********************************
 *
 * You must increment this version number for every significant change such as,
 * but not limited to: ADD, DELETE RENAME OR REPURPOSE any directive/option.
 *
 * Note: Update also Version.h !
 */
#define CONFIGURATION_ADV_H_VERSION 010100

// @section temperature

//===========================================================================
//=============================Thermal Settings  ============================
//===========================================================================

#if DISABLED(PIDTEMPBED)
  #define BED_CHECK_INTERVAL 5000 // ms between checks in bang-bang control
  #if ENABLED(BED_LIMIT_SWITCHING)
    #define BED_HYSTERESIS 2 // Only disable heating if T>target+BED_HYSTERESIS and enable heating if T>target-BED_HYSTERESIS
  #endif
#endif

/**
 * Thermal Protection protects your printer from damage and fire if a
 * thermistor falls out or temperature sensors fail in any way.
 *
 * The issue: If a thermistor falls out or a temperature sensor fails,
 * Marlin can no longer sense the actual temperature. Since a disconnected
 * thermistor reads as a low temperature, the firmware will keep the heater on.
 *
 * The solution: Once the temperature reaches the target, start observing.
 * If the temperature stays too far below the target (hysteresis) for too long (period),
 * the firmware will halt the machine as a safety precaution.
 *
 * If you get false positives for "Thermal Runaway" increase THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
 */
#if ENABLED(THERMAL_PROTECTION_HOTENDS)
  #define THERMAL_PROTECTION_PERIOD 40        // Seconds
  #define THERMAL_PROTECTION_HYSTERESIS 4     // Degrees Celsius

  /**
   * Whenever an M104 or M109 increases the target temperature the firmware will wait for the
   * WATCH_TEMP_PERIOD to expire, and if the temperature hasn't increased by WATCH_TEMP_INCREASE
   * degrees, the machine is halted, requiring a hard reset. This test restarts with any M104/M109,
   * but only if the current temperature is far enough below the target for a reliable test.
   *
   * If you get false positives for "Heating failed" increase WATCH_TEMP_PERIOD and/or decrease WATCH_TEMP_INCREASE
   * WATCH_TEMP_INCREASE should not be below 2.
   */
  #define WATCH_TEMP_PERIOD 20                // Seconds
  #define WATCH_TEMP_INCREASE 2               // Degrees Celsius
#endif

/**
 * Thermal Protection parameters for the bed are just as above for hotends.
 */
#if ENABLED(THERMAL_PROTECTION_BED)
  #define THERMAL_PROTECTION_BED_PERIOD 20    // Seconds
  #define THERMAL_PROTECTION_BED_HYSTERESIS 2 // Degrees Celsius

  /**
   * Whenever an M140 or M190 increases the target temperature the firmware will wait for the
   * WATCH_BED_TEMP_PERIOD to expire, and if the temperature hasn't increased by WATCH_BED_TEMP_INCREASE
   * degrees, the machine is halted, requiring a hard reset. This test restarts with any M140/M190,
   * but only if the current temperature is far enough below the target for a reliable test.
   *
   * If you get too many "Heating failed" errors, increase WATCH_BED_TEMP_PERIOD and/or decrease
   * WATCH_BED_TEMP_INCREASE. (WATCH_BED_TEMP_INCREASE should not be below 2.)
   */
  #define WATCH_BED_TEMP_PERIOD 60                // Seconds
  #define WATCH_BED_TEMP_INCREASE 2               // Degrees Celsius
#endif

#if ENABLED(PIDTEMP)
  // this adds an experimental additional term to the heating power, proportional to the extrusion speed.
  // if Kc is chosen well, the additional required power due to increased melting should be compensated.
  //#define PID_EXTRUSION_SCALING
  #if ENABLED(PID_EXTRUSION_SCALING)
    #define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
    #define LPQ_MAX_LEN 50
  #endif
#endif

/**
 * Automatic Temperature:
 * The hotend target temperature is calculated by all the buffered lines of gcode.
 * The maximum buffered steps/sec of the extruder motor is called "se".
 * Start autotemp mode with M109 S<mintemp> B<maxtemp> F<factor>
 * The target temperature is set to mintemp+factor*se[steps/sec] and is limited by
 * mintemp and maxtemp. Turn this off by executing M109 without F*
 * Also, if the temperature is set to a value below mintemp, it will not be changed by autotemp.
 * On an Ultimaker, some initial testing worked with M109 S215 B260 F1 in the start.gcode
 */
#define AUTOTEMP
#if ENABLED(AUTOTEMP)
  #define AUTOTEMP_OLDWEIGHT 0.98
#endif

//Show Temperature ADC value
//The M105 command return, besides traditional information, the ADC value read from temperature sensors.
//#define SHOW_TEMP_ADC_VALUES

/**
 * High Temperature Thermistor Support
 *
 * Thermistors able to support high temperature tend to have a hard time getting
 * good readings at room and lower temperatures. This means HEATER_X_RAW_LO_TEMP
 * will probably be caught when the heating element first turns on during the
 * preheating process, which will trigger a min_temp_error as a safety measure
 * and force stop everything.
 * To circumvent this limitation, we allow for a preheat time (during which,
 * min_temp_error won't be triggered) and add a min_temp buffer to handle
 * aberrant readings.
 *
 * If you want to enable this feature for your hotend thermistor(s)
 * uncomment and set values > 0 in the constants below
 */

// The number of consecutive low temperature errors that can occur
// before a min_temp_error is triggered. (Shouldn't be more than 10.)
//#define MAX_CONSECUTIVE_LOW_TEMPERATURE_ERROR_ALLOWED 0

// The number of milliseconds a hotend will preheat before starting to check
// the temperature. This value should NOT be set to the time it takes the
// hot end to reach the target temperature, but the time it takes to reach
// the minimum temperature your thermistor can read. The lower the better/safer.
// This shouldn't need to be more than 30 seconds (30000)
//#define MILLISECONDS_PREHEAT_TIME 0

// @section extruder

//  extruder run-out prevention.
//if the machine is idle, and the temperature over MINTEMP, every couple of SECONDS some filament is extruded
//#define EXTRUDER_RUNOUT_PREVENT
#define EXTRUDER_RUNOUT_MINTEMP 190
#define EXTRUDER_RUNOUT_SECONDS 30
#define EXTRUDER_RUNOUT_ESTEPS 14   // mm filament
#define EXTRUDER_RUNOUT_SPEED 1500  // extrusion speed
#define EXTRUDER_RUNOUT_EXTRUDE 100

// @section temperature

//These defines help to calibrate the AD595 sensor in case you get wrong temperature measurements.
//The measured temperature is defined as "actualTemp = (measuredTemp * TEMP_SENSOR_AD595_GAIN) + TEMP_SENSOR_AD595_OFFSET"
#define TEMP_SENSOR_AD595_OFFSET 0.0
#define TEMP_SENSOR_AD595_GAIN   1.0

//This is for controlling a fan to cool down the stepper drivers
//it will turn on when any driver is enabled
//and turn off after the set amount of seconds from last driver being disabled again
#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
#define CONTROLLERFAN_SPEED 255  // == full speed

// When first starting the main fan, run it at full speed for the
// given number of milliseconds.  This gets the fan spinning reliably
// before setting a PWM value. (Does not work with software PWM for fan on Sanguinololu)
//#define FAN_KICKSTART_TIME 100

// This defines the minimal speed for the main fan, run in PWM mode
// to enable uncomment and set minimal PWM speed for reliable running (1-255)
// if fan speed is [1 - (FAN_MIN_PWM-1)] it is set to FAN_MIN_PWM
//#define FAN_MIN_PWM 50

// @section extruder

// Extruder cooling fans
// Configure fan pin outputs to automatically turn on/off when the associated
// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
// Multiple extruders can be assigned to the same pin in which case
// the fan will turn on when any selected extruder is above the threshold.
#define EXTRUDER_0_AUTO_FAN_PIN -1
#define EXTRUDER_1_AUTO_FAN_PIN -1
#define EXTRUDER_2_AUTO_FAN_PIN -1
#define EXTRUDER_3_AUTO_FAN_PIN -1
#define EXTRUDER_AUTO_FAN_TEMPERATURE 50
#define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed

//===========================================================================
//============================ Mechanical Settings ==========================
//===========================================================================

// @section homing

// If you want endstops to stay on (by default) even when not homing
// enable this option. Override at any time with M120, M121.
//#define ENDSTOPS_ALWAYS_ON_DEFAULT

// @section extras

//#define Z_LATE_ENABLE // Enable Z the last moment. Needed if your Z driver overheats.

// Dual X Steppers
// Uncomment this option to drive two X axis motors.
// The next unused E driver will be assigned to the second X stepper.
//#define X_DUAL_STEPPER_DRIVERS
#if ENABLED(X_DUAL_STEPPER_DRIVERS)
  // Set true if the two X motors need to rotate in opposite directions
  #define INVERT_X2_VS_X_DIR true
#endif


// Dual Y Steppers
// Uncomment this option to drive two Y axis motors.
// The next unused E driver will be assigned to the second Y stepper.
//#define Y_DUAL_STEPPER_DRIVERS
#if ENABLED(Y_DUAL_STEPPER_DRIVERS)
  // Set true if the two Y motors need to rotate in opposite directions
  #define INVERT_Y2_VS_Y_DIR true
#endif

// A single Z stepper driver is usually used to drive 2 stepper motors.
// Uncomment this option to use a separate stepper driver for each Z axis motor.
// The next unused E driver will be assigned to the second Z stepper.
//#define Z_DUAL_STEPPER_DRIVERS

#if ENABLED(Z_DUAL_STEPPER_DRIVERS)

  // Z_DUAL_ENDSTOPS is a feature to enable the use of 2 endstops for both Z steppers - Let's call them Z stepper and Z2 stepper.
  // That way the machine is capable to align the bed during home, since both Z steppers are homed.
  // There is also an implementation of M666 (software endstops adjustment) to this feature.
  // After Z homing, this adjustment is applied to just one of the steppers in order to align the bed.
  // One just need to home the Z axis and measure the distance difference between both Z axis and apply the math: Z adjust = Z - Z2.
  // If the Z stepper axis is closer to the bed, the measure Z > Z2 (yes, it is.. think about it) and the Z adjust would be positive.
  // Play a little bit with small adjustments (0.5mm) and check the behaviour.
  // The M119 (endstops report) will start reporting the Z2 Endstop as well.

  //#define Z_DUAL_ENDSTOPS

  #if ENABLED(Z_DUAL_ENDSTOPS)
    #define Z2_USE_ENDSTOP _XMAX_
  #endif

#endif // Z_DUAL_STEPPER_DRIVERS

// Enable this for dual x-carriage printers.
// A dual x-carriage design has the advantage that the inactive extruder can be parked which
// prevents hot-end ooze contaminating the print. It also reduces the weight of each x-carriage
// allowing faster printing speeds. Connect your X2 stepper to the first unused E plug.
//#define DUAL_X_CARRIAGE
#if ENABLED(DUAL_X_CARRIAGE)
  // Configuration for second X-carriage
  // Note: the first x-carriage is defined as the x-carriage which homes to the minimum endstop;
  // the second x-carriage always homes to the maximum endstop.
  #define X2_MIN_POS 80     // set minimum to ensure second x-carriage doesn't hit the parked first X-carriage
  #define X2_MAX_POS 353    // set maximum to the distance between toolheads when both heads are homed
  #define X2_HOME_DIR 1     // the second X-carriage always homes to the maximum endstop position
  #define X2_HOME_POS X2_MAX_POS // default home position is the maximum carriage position
      // However: In this mode the HOTEND_OFFSET_X value for the second extruder provides a software
      // override for X2_HOME_POS. This also allow recalibration of the distance between the two endstops
      // without modifying the firmware (through the "M218 T1 X???" command).
      // Remember: you should set the second extruder x-offset to 0 in your slicer.

  // There are a few selectable movement modes for dual x-carriages using M605 S<mode>
  //    Mode 0: Full control. The slicer has full control over both x-carriages and can achieve optimal travel results
  //                           as long as it supports dual x-carriages. (M605 S0)
  //    Mode 1: Auto-park mode. The firmware will automatically park and unpark the x-carriages on tool changes so
  //                           that additional slicer support is not required. (M605 S1)
  //    Mode 2: Duplication mode. The firmware will transparently make the second x-carriage and extruder copy all
  //                           actions of the first x-carriage. This allows the printer to print 2 arbitrary items at
  //                           once. (2nd extruder x offset and temp offset are set using: M605 S2 [Xnnn] [Rmmm])

  // This is the default power-up mode which can be later using M605.
  #define DEFAULT_DUAL_X_CARRIAGE_MODE 0

  // Default settings in "Auto-park Mode"
  #define TOOLCHANGE_PARK_ZLIFT   0.2      // the distance to raise Z axis when parking an extruder
  #define TOOLCHANGE_UNPARK_ZLIFT 1        // the distance to raise Z axis when unparking an extruder

  // Default x offset in duplication mode (typically set to half print bed width)
  #define DEFAULT_DUPLICATION_X_OFFSET 100

#endif //DUAL_X_CARRIAGE

// @section homing

//homing hits the endstop, then retracts by this distance, before it tries to slowly bump again:
#define X_HOME_BUMP_MM 5
#define Y_HOME_BUMP_MM 5
#define Z_HOME_BUMP_MM 2
#define HOMING_BUMP_DIVISOR {2, 2, 4}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
//#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.

// When G28 is called, this option will make Y home before X
//#define HOME_Y_BEFORE_X

// @section machine

#define AXIS_RELATIVE_MODES {false, false, false, false}

// Allow duplication mode with a basic dual-nozzle extruder
//#define DUAL_NOZZLE_DUPLICATION_MODE

// By default pololu step drivers require an active high signal. However, some high power drivers require an active low signal as step.
#define INVERT_X_STEP_PIN false
#define INVERT_Y_STEP_PIN false
#define INVERT_Z_STEP_PIN false
#define INVERT_E_STEP_PIN false

// Default stepper release if idle. Set to 0 to deactivate.
// Steppers will shut down DEFAULT_STEPPER_DEACTIVE_TIME seconds after the last move when DISABLE_INACTIVE_? is true.
// Time can be set by M18 and M84.
#define DEFAULT_STEPPER_DEACTIVE_TIME 120
#define DISABLE_INACTIVE_X true
#define DISABLE_INACTIVE_Y true
#define DISABLE_INACTIVE_Z true  // set to false if the nozzle will fall down on your printed part when print has finished.
#define DISABLE_INACTIVE_E true

#define DEFAULT_MINIMUMFEEDRATE       0.0     // minimum feedrate
#define DEFAULT_MINTRAVELFEEDRATE     0.0

// @section lcd

#if ENABLED(ULTIPANEL)
  #define MANUAL_FEEDRATE {50*60, 50*60, 4*60, 60} // Feedrates for manual moves along X, Y, Z, E from panel
  #define ULTIPANEL_FEEDMULTIPLY  // Comment to disable setting feedrate multiplier via encoder
#endif

// @section extras

// minimum time in microseconds that a movement needs to take if the buffer is emptied.
#define DEFAULT_MINSEGMENTTIME        20000

// If defined the movements slow down when the look ahead buffer is only half full
#define SLOWDOWN

// Frequency limit
// See nophead's blog for more info
// Not working O
//#define XY_FREQUENCY_LIMIT  15

// Minimum planner junction speed. Sets the default minimum speed the planner plans for at the end
// of the buffer and all stops. This should not be much greater than zero and should only be changed
// if unwanted behavior is observed on a user's machine when running at very slow speeds.
#define MINIMUM_PLANNER_SPEED 0.05// (mm/sec)

// Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
#define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]

// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)

// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
//#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps

// uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
//#define DIGIPOT_I2C
// Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8
#define DIGIPOT_I2C_NUM_CHANNELS 8
// actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS
#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}

//===========================================================================
//=============================Additional Features===========================
//===========================================================================

#define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
#define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
#define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value

//#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
#define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again

// @section lcd

// Include a page of printer information in the LCD Main Menu
//#define LCD_INFO_MENU

#if ENABLED(SDSUPPORT)

  // Some RAMPS and other boards don't detect when an SD card is inserted. You can work
  // around this by connecting a push button or single throw switch to the pin defined
  // as SD_DETECT_PIN in your board's pins definitions.
  // This setting should be disabled unless you are using a push button, pulling the pin to ground.
  // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
  #define SD_DETECT_INVERTED

  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
  #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.

  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
  // using:
  //#define MENU_ADDAUTOSTART

  // Show a progress bar on HD44780 LCDs for SD printing
  //#define LCD_PROGRESS_BAR

  #if ENABLED(LCD_PROGRESS_BAR)
    // Amount of time (ms) to show the bar
    #define PROGRESS_BAR_BAR_TIME 2000
    // Amount of time (ms) to show the status message
    #define PROGRESS_BAR_MSG_TIME 3000
    // Amount of time (ms) to retain the status message (0=forever)
    #define PROGRESS_MSG_EXPIRE   0
    // Enable this to show messages for MSG_TIME then hide them
    //#define PROGRESS_MSG_ONCE
  #endif

  // This allows hosts to request long names for files and folders with M33
  //#define LONG_FILENAME_HOST_SUPPORT

  // This option allows you to abort SD printing when any endstop is triggered.
  // This feature must be enabled with "M540 S1" or from the LCD menu.
  // To have any effect, endstops must be enabled during SD printing.
  //#define ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED

#endif // SDSUPPORT

// for dogm lcd displays you can choose some additional fonts:
#if ENABLED(DOGLCD)
  // save 3120 bytes of PROGMEM by commenting out #define USE_BIG_EDIT_FONT
  // we don't have a big font for Cyrillic, Kana
  //#define USE_BIG_EDIT_FONT

  // If you have spare 2300Byte of progmem and want to use a
  // smaller font on the Info-screen uncomment the next line.
  //#define USE_SMALL_INFOFONT
#endif // DOGLCD

// @section safety

// The hardware watchdog should reset the microcontroller disabling all outputs,
// in case the firmware gets stuck and doesn't do temperature regulation.
#define USE_WATCHDOG

#if ENABLED(USE_WATCHDOG)
  // If you have a watchdog reboot in an ArduinoMega2560 then the device will hang forever, as a watchdog reset will leave the watchdog on.
  // The "WATCHDOG_RESET_MANUAL" goes around this by not using the hardware reset.
  //  However, THIS FEATURE IS UNSAFE!, as it will only work if interrupts are disabled. And the code could hang in an interrupt routine with interrupts disabled.
  //#define WATCHDOG_RESET_MANUAL
#endif

// @section lcd

// Babystepping enables the user to control the axis in tiny amounts, independently from the normal printing process
// it can e.g. be used to change z-positions in the print startup phase in real-time
// does not respect endstops!
//#define BABYSTEPPING
#if ENABLED(BABYSTEPPING)
  #define BABYSTEP_XY  //not only z, but also XY in the menu. more clutter, more functions
                       //not implemented for deltabots!
  #define BABYSTEP_INVERT_Z false  //true for inverse movements in Z
  #define BABYSTEP_MULTIPLICATOR 1 //faster movements
#endif

// @section extruder

// extruder advance constant (s2/mm3)
//
// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
//
// Hooke's law says:    force = k * distance
// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
// so: v ^ 2 is proportional to number of steps we advance the extruder
//#define ADVANCE

#if ENABLED(ADVANCE)
  #define EXTRUDER_ADVANCE_K .0
  #define D_FILAMENT 2.85
#endif

// Implementation of a linear pressure control
// Assumption: advance = k * (delta velocity)
// K=0 means advance disabled. A good value for a gregs wade extruder will be around K=75
//#define LIN_ADVANCE

#if ENABLED(LIN_ADVANCE)
  #define LIN_ADVANCE_K 75
#endif

// @section leveling

// Default mesh area is an area with an inset margin on the print area.
// Below are the macros that are used to define the borders for the mesh area,
// made available here for specialized needs, ie dual extruder setup.
#if ENABLED(MESH_BED_LEVELING)
  #define MESH_MIN_X (X_MIN_POS + MESH_INSET)
  #define MESH_MAX_X (X_MAX_POS - (MESH_INSET))
  #define MESH_MIN_Y (Y_MIN_POS + MESH_INSET)
  #define MESH_MAX_Y (Y_MAX_POS - (MESH_INSET))
#endif

// @section extras

// Arc interpretation settings:
#define ARC_SUPPORT  // Disabling this saves ~2738 bytes
#define MM_PER_ARC_SEGMENT 1
#define N_ARC_CORRECTION 25

// Support for G5 with XYZE destination and IJPQ offsets. Requires ~2666 bytes.
//#define BEZIER_CURVE_SUPPORT

const unsigned int dropsegments = 5; //everything with less than this number of steps will be ignored as move and joined with the next movement

// @section temperature

// Control heater 0 and heater 1 in parallel.
//#define HEATERS_PARALLEL

//===========================================================================
//================================= Buffers =================================
//===========================================================================

// @section hidden

// The number of linear motions that can be in the plan at any give time.
// THE BLOCK_BUFFER_SIZE NEEDS TO BE A POWER OF 2, i.g. 8,16,32 because shifts and ors are used to do the ring-buffering.
#if ENABLED(SDSUPPORT)
  #define BLOCK_BUFFER_SIZE 16   // SD,LCD,Buttons take more memory, block buffer needs to be smaller
#else
  #define BLOCK_BUFFER_SIZE 16 // maximize block buffer
#endif

// @section serial

// The ASCII buffer for serial input
#define MAX_CMD_SIZE 96
#define BUFSIZE 4

// Transfer Buffer Size
// To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
// To buffer a simple "ok" you need 4 bytes.
// For ADVANCED_OK (M105) you need 32 bytes.
// For debug-echo: 128 bytes for the optimal speed.
// Other output doesn't need to be that speedy.
// :[0,2,4,8,16,32,64,128,256]
#define TX_BUFFER_SIZE 0

// Enable an emergency-command parser to intercept certain commands as they
// enter the serial receive buffer, so they cannot be blocked.
// Currently handles M108, M112, M410
// Does not work on boards using AT90USB (USBCON) processors!
//#define EMERGENCY_PARSER

// Bad Serial-connections can miss a received command by sending an 'ok'
// Therefore some clients abort after 30 seconds in a timeout.
// Some other clients start sending commands while receiving a 'wait'.
// This "wait" is only sent when the buffer is empty. 1 second is a good value here.
//#define NO_TIMEOUTS 1000 // Milliseconds

// Some clients will have this feature soon. This could make the NO_TIMEOUTS unnecessary.
//#define ADVANCED_OK

// @section fwretract

// Firmware based and LCD controlled retract
// M207 and M208 can be used to define parameters for the retraction.
// The retraction can be called by the slicer using G10 and G11
// until then, intended retractions can be detected by moves that only extrude and the direction.
// the moves are than replaced by the firmware controlled ones.

//#define FWRETRACT  //ONLY PARTIALLY TESTED
#if ENABLED(FWRETRACT)
  #define MIN_RETRACT 0.1                //minimum extruded mm to accept a automatic gcode retraction attempt
  #define RETRACT_LENGTH 3               //default retract length (positive mm)
  #define RETRACT_LENGTH_SWAP 13         //default swap retract length (positive mm), for extruder change
  #define RETRACT_FEEDRATE 45            //default feedrate for retracting (mm/s)
  #define RETRACT_ZLIFT 0                //default retract Z-lift
  #define RETRACT_RECOVER_LENGTH 0       //default additional recover length (mm, added to retract length when recovering)
  #define RETRACT_RECOVER_LENGTH_SWAP 0  //default additional swap recover length (mm, added to retract length when recovering from extruder change)
  #define RETRACT_RECOVER_FEEDRATE 8     //default feedrate for recovering from retraction (mm/s)
#endif

// Add support for experimental filament exchange support M600; requires display
#if ENABLED(ULTIPANEL)
  // #define FILAMENT_CHANGE_FEATURE             // Enable filament exchange menu and M600 g-code (used for runout sensor too)
  #if ENABLED(FILAMENT_CHANGE_FEATURE)
    #define FILAMENT_CHANGE_X_POS 3             // X position of hotend
    #define FILAMENT_CHANGE_Y_POS 3             // Y position of hotend
    #define FILAMENT_CHANGE_Z_ADD 10            // Z addition of hotend (lift)
    #define FILAMENT_CHANGE_XY_FEEDRATE 100     // X and Y axes feedrate in mm/s (also used for delta printers Z axis)
    #define FILAMENT_CHANGE_Z_FEEDRATE 5        // Z axis feedrate in mm/s (not used for delta printers)
    #define FILAMENT_CHANGE_RETRACT_LENGTH 2    // Initial retract in mm
                                                // It is a short retract used immediately after print interrupt before move to filament exchange position
    #define FILAMENT_CHANGE_RETRACT_FEEDRATE 60 // Initial retract feedrate in mm/s
    #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
                                                // Longer length for bowden printers to unload filament from whole bowden tube,
                                                // shorter lenght for printers without bowden to unload filament from extruder only,
                                                // 0 to disable unloading for manual unloading
    #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
    #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
                                                // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
                                                // Short or zero length for printers without bowden where loading is not used
    #define FILAMENT_CHANGE_LOAD_FEEDRATE 10    // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
    #define FILAMENT_CHANGE_EXTRUDE_LENGTH 50   // Extrude filament length in mm after filament is load over the hotend,
                                                // 0 to disable for manual extrusion
                                                // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
                                                // or until outcoming filament color is not clear for filament color change
    #define FILAMENT_CHANGE_EXTRUDE_FEEDRATE 3  // Extrude filament feedrate in mm/s - must be slower than load feedrate
  #endif
#endif

/******************************************************************************\
 * enable this section if you have TMC26X motor drivers.
 * you need to import the TMC26XStepper library into the Arduino IDE for this
 ******************************************************************************/

// @section tmc

//#define HAVE_TMCDRIVER
#if ENABLED(HAVE_TMCDRIVER)

  //#define X_IS_TMC
  #define X_MAX_CURRENT 1000  //in mA
  #define X_SENSE_RESISTOR 91 //in mOhms
  #define X_MICROSTEPS 16     //number of microsteps

  //#define X2_IS_TMC
  #define X2_MAX_CURRENT 1000  //in mA
  #define X2_SENSE_RESISTOR 91 //in mOhms
  #define X2_MICROSTEPS 16     //number of microsteps

  //#define Y_IS_TMC
  #define Y_MAX_CURRENT 1000  //in mA
  #define Y_SENSE_RESISTOR 91 //in mOhms
  #define Y_MICROSTEPS 16     //number of microsteps

  //#define Y2_IS_TMC
  #define Y2_MAX_CURRENT 1000  //in mA
  #define Y2_SENSE_RESISTOR 91 //in mOhms
  #define Y2_MICROSTEPS 16     //number of microsteps

  //#define Z_IS_TMC
  #define Z_MAX_CURRENT 1000  //in mA
  #define Z_SENSE_RESISTOR 91 //in mOhms
  #define Z_MICROSTEPS 16     //number of microsteps

  //#define Z2_IS_TMC
  #define Z2_MAX_CURRENT 1000  //in mA
  #define Z2_SENSE_RESISTOR 91 //in mOhms
  #define Z2_MICROSTEPS 16     //number of microsteps

  //#define E0_IS_TMC
  #define E0_MAX_CURRENT 1000  //in mA
  #define E0_SENSE_RESISTOR 91 //in mOhms
  #define E0_MICROSTEPS 16     //number of microsteps

  //#define E1_IS_TMC
  #define E1_MAX_CURRENT 1000  //in mA
  #define E1_SENSE_RESISTOR 91 //in mOhms
  #define E1_MICROSTEPS 16     //number of microsteps

  //#define E2_IS_TMC
  #define E2_MAX_CURRENT 1000  //in mA
  #define E2_SENSE_RESISTOR 91 //in mOhms
  #define E2_MICROSTEPS 16     //number of microsteps

  //#define E3_IS_TMC
  #define E3_MAX_CURRENT 1000  //in mA
  #define E3_SENSE_RESISTOR 91 //in mOhms
  #define E3_MICROSTEPS 16     //number of microsteps

#endif

/******************************************************************************\
 * enable this section if you have L6470  motor drivers.
 * you need to import the L6470 library into the Arduino IDE for this
 ******************************************************************************/

// @section l6470

//#define HAVE_L6470DRIVER
#if ENABLED(HAVE_L6470DRIVER)

  //#define X_IS_L6470
  #define X_MICROSTEPS 16     //number of microsteps
  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
  #define X_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
  #define X_STALLCURRENT 1500 //current in mA where the driver will detect a stall

  //#define X2_IS_L6470
  #define X2_MICROSTEPS 16     //number of microsteps
  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
  #define X2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
  #define X2_STALLCURRENT 1500 //current in mA where the driver will detect a stall

  //#define Y_IS_L6470
  #define Y_MICROSTEPS 16     //number of microsteps
  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
  #define Y_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
  #define Y_STALLCURRENT 1500 //current in mA where the driver will detect a stall

  //#define Y2_IS_L6470
  #define Y2_MICROSTEPS 16     //number of microsteps
  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
  #define Y2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
  #define Y2_STALLCURRENT 1500 //current in mA where the driver will detect a stall

  //#define Z_IS_L6470
  #define Z_MICROSTEPS 16     //number of microsteps
  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
  #define Z_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
  #define Z_STALLCURRENT 1500 //current in mA where the driver will detect a stall

  //#define Z2_IS_L6470
  #define Z2_MICROSTEPS 16     //number of microsteps
  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
  #define Z2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
  #define Z2_STALLCURRENT 1500 //current in mA where the driver will detect a stall

  //#define E0_IS_L6470
  #define E0_MICROSTEPS 16     //number of microsteps
  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
  #define E0_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
  #define E0_STALLCURRENT 1500 //current in mA where the driver will detect a stall

  //#define E1_IS_L6470
  #define E1_MICROSTEPS 16     //number of microsteps
  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
  #define E1_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
  #define E1_STALLCURRENT 1500 //current in mA where the driver will detect a stall

  //#define E2_IS_L6470
  #define E2_MICROSTEPS 16     //number of microsteps
  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
  #define E2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
  #define E2_STALLCURRENT 1500 //current in mA where the driver will detect a stall

  //#define E3_IS_L6470
  #define E3_MICROSTEPS 16     //number of microsteps
  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
  #define E3_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
  #define E3_STALLCURRENT 1500 //current in mA where the driver will detect a stall

#endif

/**
 * TWI/I2C BUS
 *
 * This feature is an EXPERIMENTAL feature so it shall not be used on production
 * machines. Enabling this will allow you to send and receive I2C data from slave
 * devices on the bus.
 *
 * ; Example #1
 * ; This macro send the string "Marlin" to the slave device with address 0x63 (99)
 * ; It uses multiple M155 commands with one B<base 10> arg
 * M155 A99  ; Target slave address
 * M155 B77  ; M
 * M155 B97  ; a
 * M155 B114 ; r
 * M155 B108 ; l
 * M155 B105 ; i
 * M155 B110 ; n
 * M155 S1   ; Send the current buffer
 *
 * ; Example #2
 * ; Request 6 bytes from slave device with address 0x63 (99)
 * M156 A99 B5
 *
 * ; Example #3
 * ; Example serial output of a M156 request
 * echo:i2c-reply: from:99 bytes:5 data:hello
 */

// @section i2cbus

//#define EXPERIMENTAL_I2CBUS

#endif // CONFIGURATION_ADV_H

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/**
 * Marlin 3D Printer Firmware
 * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

/**
 * Configuration_adv.h
 *
 * Advanced settings.
 * Only change these if you know exactly what you're doing.
 * Some of these settings can damage your printer if improperly set!
 *
 * Basic settings can be found in Configuration.h
 *
 */
#ifndef CONFIGURATION_ADV_H
#define CONFIGURATION_ADV_H

/**
 *
 *  ***********************************
 *  **  ATTENTION TO ALL DEVELOPERS  **
 *  ***********************************
 *
 * You must increment this version number for every significant change such as,
 * but not limited to: ADD, DELETE RENAME OR REPURPOSE any directive/option.
 *
 * Note: Update also Version.h !
 */
#define CONFIGURATION_ADV_H_VERSION 010100

// @section temperature

//===========================================================================
//=============================Thermal Settings  ============================
//===========================================================================

#if DISABLED(PIDTEMPBED)
  #define BED_CHECK_INTERVAL 5000 // ms between checks in bang-bang control
  #if ENABLED(BED_LIMIT_SWITCHING)
    #define BED_HYSTERESIS 2 // Only disable heating if T>target+BED_HYSTERESIS and enable heating if T>target-BED_HYSTERESIS
  #endif
#endif

/**
 * Thermal Protection protects your printer from damage and fire if a
 * thermistor falls out or temperature sensors fail in any way.
 *
 * The issue: If a thermistor falls out or a temperature sensor fails,
 * Marlin can no longer sense the actual temperature. Since a disconnected
 * thermistor reads as a low temperature, the firmware will keep the heater on.
 *
 * The solution: Once the temperature reaches the target, start observing.
 * If the temperature stays too far below the target (hysteresis) for too long (period),
 * the firmware will halt the machine as a safety precaution.
 *
 * If you get false positives for "Thermal Runaway" increase THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
 */
#if ENABLED(THERMAL_PROTECTION_HOTENDS)
  #define THERMAL_PROTECTION_PERIOD 40        // Seconds
  #define THERMAL_PROTECTION_HYSTERESIS 4     // Degrees Celsius

  /**
   * Whenever an M104 or M109 increases the target temperature the firmware will wait for the
   * WATCH_TEMP_PERIOD to expire, and if the temperature hasn't increased by WATCH_TEMP_INCREASE
   * degrees, the machine is halted, requiring a hard reset. This test restarts with any M104/M109,
   * but only if the current temperature is far enough below the target for a reliable test.
   *
   * If you get false positives for "Heating failed" increase WATCH_TEMP_PERIOD and/or decrease WATCH_TEMP_INCREASE
   * WATCH_TEMP_INCREASE should not be below 2.
   */
  #define WATCH_TEMP_PERIOD 20                // Seconds
  #define WATCH_TEMP_INCREASE 2               // Degrees Celsius
#endif

/**
 * Thermal Protection parameters for the bed are just as above for hotends.
 */
#if ENABLED(THERMAL_PROTECTION_BED)
  #define THERMAL_PROTECTION_BED_PERIOD 20    // Seconds
  #define THERMAL_PROTECTION_BED_HYSTERESIS 2 // Degrees Celsius

  /**
   * Whenever an M140 or M190 increases the target temperature the firmware will wait for the
   * WATCH_BED_TEMP_PERIOD to expire, and if the temperature hasn't increased by WATCH_BED_TEMP_INCREASE
   * degrees, the machine is halted, requiring a hard reset. This test restarts with any M140/M190,
   * but only if the current temperature is far enough below the target for a reliable test.
   *
   * If you get too many "Heating failed" errors, increase WATCH_BED_TEMP_PERIOD and/or decrease
   * WATCH_BED_TEMP_INCREASE. (WATCH_BED_TEMP_INCREASE should not be below 2.)
   */
  #define WATCH_BED_TEMP_PERIOD 60                // Seconds
  #define WATCH_BED_TEMP_INCREASE 2               // Degrees Celsius
#endif

#if ENABLED(PIDTEMP)
  // this adds an experimental additional term to the heating power, proportional to the extrusion speed.
  // if Kc is chosen well, the additional required power due to increased melting should be compensated.
  //#define PID_EXTRUSION_SCALING
  #if ENABLED(PID_EXTRUSION_SCALING)
    #define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
    #define LPQ_MAX_LEN 50
  #endif
#endif

/**
 * Automatic Temperature:
 * The hotend target temperature is calculated by all the buffered lines of gcode.
 * The maximum buffered steps/sec of the extruder motor is called "se".
 * Start autotemp mode with M109 S<mintemp> B<maxtemp> F<factor>
 * The target temperature is set to mintemp+factor*se[steps/sec] and is limited by
 * mintemp and maxtemp. Turn this off by executing M109 without F*
 * Also, if the temperature is set to a value below mintemp, it will not be changed by autotemp.
 * On an Ultimaker, some initial testing worked with M109 S215 B260 F1 in the start.gcode
 */
#define AUTOTEMP
#if ENABLED(AUTOTEMP)
  #define AUTOTEMP_OLDWEIGHT 0.98
#endif

//Show Temperature ADC value
//The M105 command return, besides traditional information, the ADC value read from temperature sensors.
//#define SHOW_TEMP_ADC_VALUES

/**
 * High Temperature Thermistor Support
 *
 * Thermistors able to support high temperature tend to have a hard time getting
 * good readings at room and lower temperatures. This means HEATER_X_RAW_LO_TEMP
 * will probably be caught when the heating element first turns on during the
 * preheating process, which will trigger a min_temp_error as a safety measure
 * and force stop everything.
 * To circumvent this limitation, we allow for a preheat time (during which,
 * min_temp_error won't be triggered) and add a min_temp buffer to handle
 * aberrant readings.
 *
 * If you want to enable this feature for your hotend thermistor(s)
 * uncomment and set values > 0 in the constants below
 */

// The number of consecutive low temperature errors that can occur
// before a min_temp_error is triggered. (Shouldn't be more than 10.)
//#define MAX_CONSECUTIVE_LOW_TEMPERATURE_ERROR_ALLOWED 0

// The number of milliseconds a hotend will preheat before starting to check
// the temperature. This value should NOT be set to the time it takes the
// hot end to reach the target temperature, but the time it takes to reach
// the minimum temperature your thermistor can read. The lower the better/safer.
// This shouldn't need to be more than 30 seconds (30000)
//#define MILLISECONDS_PREHEAT_TIME 0

// @section extruder

//  extruder run-out prevention.
//if the machine is idle, and the temperature over MINTEMP, every couple of SECONDS some filament is extruded
//#define EXTRUDER_RUNOUT_PREVENT
#define EXTRUDER_RUNOUT_MINTEMP 190
#define EXTRUDER_RUNOUT_SECONDS 30
#define EXTRUDER_RUNOUT_ESTEPS 14   // mm filament
#define EXTRUDER_RUNOUT_SPEED 1500  // extrusion speed
#define EXTRUDER_RUNOUT_EXTRUDE 100

// @section temperature

//These defines help to calibrate the AD595 sensor in case you get wrong temperature measurements.
//The measured temperature is defined as "actualTemp = (measuredTemp * TEMP_SENSOR_AD595_GAIN) + TEMP_SENSOR_AD595_OFFSET"
#define TEMP_SENSOR_AD595_OFFSET 0.0
#define TEMP_SENSOR_AD595_GAIN   1.0

//This is for controlling a fan to cool down the stepper drivers
//it will turn on when any driver is enabled
//and turn off after the set amount of seconds from last driver being disabled again
#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
#define CONTROLLERFAN_SPEED 255  // == full speed

// When first starting the main fan, run it at full speed for the
// given number of milliseconds.  This gets the fan spinning reliably
// before setting a PWM value. (Does not work with software PWM for fan on Sanguinololu)
//#define FAN_KICKSTART_TIME 100

// This defines the minimal speed for the main fan, run in PWM mode
// to enable uncomment and set minimal PWM speed for reliable running (1-255)
// if fan speed is [1 - (FAN_MIN_PWM-1)] it is set to FAN_MIN_PWM
//#define FAN_MIN_PWM 50

// @section extruder

// Extruder cooling fans
// Configure fan pin outputs to automatically turn on/off when the associated
// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
// Multiple extruders can be assigned to the same pin in which case
// the fan will turn on when any selected extruder is above the threshold.
#define EXTRUDER_0_AUTO_FAN_PIN -1
#define EXTRUDER_1_AUTO_FAN_PIN -1
#define EXTRUDER_2_AUTO_FAN_PIN -1
#define EXTRUDER_3_AUTO_FAN_PIN -1
#define EXTRUDER_AUTO_FAN_TEMPERATURE 50
#define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed

//===========================================================================
//============================ Mechanical Settings ==========================
//===========================================================================

// @section homing

// If you want endstops to stay on (by default) even when not homing
// enable this option. Override at any time with M120, M121.
//#define ENDSTOPS_ALWAYS_ON_DEFAULT

// @section extras

//#define Z_LATE_ENABLE // Enable Z the last moment. Needed if your Z driver overheats.

// Dual X Steppers
// Uncomment this option to drive two X axis motors.
// The next unused E driver will be assigned to the second X stepper.
//#define X_DUAL_STEPPER_DRIVERS
#if ENABLED(X_DUAL_STEPPER_DRIVERS)
  // Set true if the two X motors need to rotate in opposite directions
  #define INVERT_X2_VS_X_DIR true
#endif


// Dual Y Steppers
// Uncomment this option to drive two Y axis motors.
// The next unused E driver will be assigned to the second Y stepper.
//#define Y_DUAL_STEPPER_DRIVERS
#if ENABLED(Y_DUAL_STEPPER_DRIVERS)
  // Set true if the two Y motors need to rotate in opposite directions
  #define INVERT_Y2_VS_Y_DIR true
#endif

// A single Z stepper driver is usually used to drive 2 stepper motors.
// Uncomment this option to use a separate stepper driver for each Z axis motor.
// The next unused E driver will be assigned to the second Z stepper.
//#define Z_DUAL_STEPPER_DRIVERS

#if ENABLED(Z_DUAL_STEPPER_DRIVERS)

  // Z_DUAL_ENDSTOPS is a feature to enable the use of 2 endstops for both Z steppers - Let's call them Z stepper and Z2 stepper.
  // That way the machine is capable to align the bed during home, since both Z steppers are homed.
  // There is also an implementation of M666 (software endstops adjustment) to this feature.
  // After Z homing, this adjustment is applied to just one of the steppers in order to align the bed.
  // One just need to home the Z axis and measure the distance difference between both Z axis and apply the math: Z adjust = Z - Z2.
  // If the Z stepper axis is closer to the bed, the measure Z > Z2 (yes, it is.. think about it) and the Z adjust would be positive.
  // Play a little bit with small adjustments (0.5mm) and check the behaviour.
  // The M119 (endstops report) will start reporting the Z2 Endstop as well.

  //#define Z_DUAL_ENDSTOPS

  #if ENABLED(Z_DUAL_ENDSTOPS)
    #define Z2_USE_ENDSTOP _XMAX_
  #endif

#endif // Z_DUAL_STEPPER_DRIVERS

// Enable this for dual x-carriage printers.
// A dual x-carriage design has the advantage that the inactive extruder can be parked which
// prevents hot-end ooze contaminating the print. It also reduces the weight of each x-carriage
// allowing faster printing speeds. Connect your X2 stepper to the first unused E plug.
//#define DUAL_X_CARRIAGE
#if ENABLED(DUAL_X_CARRIAGE)
  // Configuration for second X-carriage
  // Note: the first x-carriage is defined as the x-carriage which homes to the minimum endstop;
  // the second x-carriage always homes to the maximum endstop.
  #define X2_MIN_POS 80     // set minimum to ensure second x-carriage doesn't hit the parked first X-carriage
  #define X2_MAX_POS 353    // set maximum to the distance between toolheads when both heads are homed
  #define X2_HOME_DIR 1     // the second X-carriage always homes to the maximum endstop position
  #define X2_HOME_POS X2_MAX_POS // default home position is the maximum carriage position
      // However: In this mode the HOTEND_OFFSET_X value for the second extruder provides a software
      // override for X2_HOME_POS. This also allow recalibration of the distance between the two endstops
      // without modifying the firmware (through the "M218 T1 X???" command).
      // Remember: you should set the second extruder x-offset to 0 in your slicer.

  // There are a few selectable movement modes for dual x-carriages using M605 S<mode>
  //    Mode 0: Full control. The slicer has full control over both x-carriages and can achieve optimal travel results
  //                           as long as it supports dual x-carriages. (M605 S0)
  //    Mode 1: Auto-park mode. The firmware will automatically park and unpark the x-carriages on tool changes so
  //                           that additional slicer support is not required. (M605 S1)
  //    Mode 2: Duplication mode. The firmware will transparently make the second x-carriage and extruder copy all
  //                           actions of the first x-carriage. This allows the printer to print 2 arbitrary items at
  //                           once. (2nd extruder x offset and temp offset are set using: M605 S2 [Xnnn] [Rmmm])

  // This is the default power-up mode which can be later using M605.
  #define DEFAULT_DUAL_X_CARRIAGE_MODE 0

  // Default settings in "Auto-park Mode"
  #define TOOLCHANGE_PARK_ZLIFT   0.2      // the distance to raise Z axis when parking an extruder
  #define TOOLCHANGE_UNPARK_ZLIFT 1        // the distance to raise Z axis when unparking an extruder

  // Default x offset in duplication mode (typically set to half print bed width)
  #define DEFAULT_DUPLICATION_X_OFFSET 100

#endif //DUAL_X_CARRIAGE

// @section homing

//homing hits the endstop, then retracts by this distance, before it tries to slowly bump again:
#define X_HOME_BUMP_MM 5
#define Y_HOME_BUMP_MM 5
#define Z_HOME_BUMP_MM 2
#define HOMING_BUMP_DIVISOR {2, 2, 4}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.

// When G28 is called, this option will make Y home before X
//#define HOME_Y_BEFORE_X

// @section machine

#define AXIS_RELATIVE_MODES {false, false, false, false}

// Allow duplication mode with a basic dual-nozzle extruder
//#define DUAL_NOZZLE_DUPLICATION_MODE

// By default pololu step drivers require an active high signal. However, some high power drivers require an active low signal as step.
#define INVERT_X_STEP_PIN false
#define INVERT_Y_STEP_PIN false
#define INVERT_Z_STEP_PIN false
#define INVERT_E_STEP_PIN false

// Default stepper release if idle. Set to 0 to deactivate.
// Steppers will shut down DEFAULT_STEPPER_DEACTIVE_TIME seconds after the last move when DISABLE_INACTIVE_? is true.
// Time can be set by M18 and M84.
#define DEFAULT_STEPPER_DEACTIVE_TIME 120
#define DISABLE_INACTIVE_X true
#define DISABLE_INACTIVE_Y true
#define DISABLE_INACTIVE_Z true  // set to false if the nozzle will fall down on your printed part when print has finished.
#define DISABLE_INACTIVE_E true

#define DEFAULT_MINIMUMFEEDRATE       0.0     // minimum feedrate
#define DEFAULT_MINTRAVELFEEDRATE     0.0

// @section lcd

#if ENABLED(ULTIPANEL)
  #define MANUAL_FEEDRATE {50*60, 50*60, 4*60, 60} // Feedrates for manual moves along X, Y, Z, E from panel
  #define ULTIPANEL_FEEDMULTIPLY  // Comment to disable setting feedrate multiplier via encoder
#endif

// @section extras

// minimum time in microseconds that a movement needs to take if the buffer is emptied.
#define DEFAULT_MINSEGMENTTIME        20000

// If defined the movements slow down when the look ahead buffer is only half full
#define SLOWDOWN

// Frequency limit
// See nophead's blog for more info
// Not working O
//#define XY_FREQUENCY_LIMIT  15

// Minimum planner junction speed. Sets the default minimum speed the planner plans for at the end
// of the buffer and all stops. This should not be much greater than zero and should only be changed
// if unwanted behavior is observed on a user's machine when running at very slow speeds.
#define MINIMUM_PLANNER_SPEED 0.05// (mm/sec)

// Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
#define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]

// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)

// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
//#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps

// uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
//#define DIGIPOT_I2C
// Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8
#define DIGIPOT_I2C_NUM_CHANNELS 8
// actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS
#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}

//===========================================================================
//=============================Additional Features===========================
//===========================================================================

#define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
#define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
#define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value

//#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
#define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again

// @section lcd

// Include a page of printer information in the LCD Main Menu
//#define LCD_INFO_MENU

#if ENABLED(SDSUPPORT)

  // Some RAMPS and other boards don't detect when an SD card is inserted. You can work
  // around this by connecting a push button or single throw switch to the pin defined
  // as SD_DETECT_PIN in your board's pins definitions.
  // This setting should be disabled unless you are using a push button, pulling the pin to ground.
  // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
  #define SD_DETECT_INVERTED

  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
  #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.

  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
  // using:
  //#define MENU_ADDAUTOSTART

  // Show a progress bar on HD44780 LCDs for SD printing
  //#define LCD_PROGRESS_BAR

  #if ENABLED(LCD_PROGRESS_BAR)
    // Amount of time (ms) to show the bar
    #define PROGRESS_BAR_BAR_TIME 2000
    // Amount of time (ms) to show the status message
    #define PROGRESS_BAR_MSG_TIME 3000
    // Amount of time (ms) to retain the status message (0=forever)
    #define PROGRESS_MSG_EXPIRE   0
    // Enable this to show messages for MSG_TIME then hide them
    //#define PROGRESS_MSG_ONCE
  #endif

  // This allows hosts to request long names for files and folders with M33
  //#define LONG_FILENAME_HOST_SUPPORT

  // This option allows you to abort SD printing when any endstop is triggered.
  // This feature must be enabled with "M540 S1" or from the LCD menu.
  // To have any effect, endstops must be enabled during SD printing.
  //#define ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED

#endif // SDSUPPORT

// for dogm lcd displays you can choose some additional fonts:
#if ENABLED(DOGLCD)
  // save 3120 bytes of PROGMEM by commenting out #define USE_BIG_EDIT_FONT
  // we don't have a big font for Cyrillic, Kana
  //#define USE_BIG_EDIT_FONT

  // If you have spare 2300Byte of progmem and want to use a
  // smaller font on the Info-screen uncomment the next line.
  //#define USE_SMALL_INFOFONT
#endif // DOGLCD

// @section safety

// The hardware watchdog should reset the microcontroller disabling all outputs,
// in case the firmware gets stuck and doesn't do temperature regulation.
#define USE_WATCHDOG

#if ENABLED(USE_WATCHDOG)
  // If you have a watchdog reboot in an ArduinoMega2560 then the device will hang forever, as a watchdog reset will leave the watchdog on.
  // The "WATCHDOG_RESET_MANUAL" goes around this by not using the hardware reset.
  //  However, THIS FEATURE IS UNSAFE!, as it will only work if interrupts are disabled. And the code could hang in an interrupt routine with interrupts disabled.
  //#define WATCHDOG_RESET_MANUAL
#endif

// @section lcd

// Babystepping enables the user to control the axis in tiny amounts, independently from the normal printing process
// it can e.g. be used to change z-positions in the print startup phase in real-time
// does not respect endstops!
//#define BABYSTEPPING
#if ENABLED(BABYSTEPPING)
  #define BABYSTEP_XY  //not only z, but also XY in the menu. more clutter, more functions
                       //not implemented for deltabots!
  #define BABYSTEP_INVERT_Z false  //true for inverse movements in Z
  #define BABYSTEP_MULTIPLICATOR 1 //faster movements
#endif

// @section extruder

// extruder advance constant (s2/mm3)
//
// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
//
// Hooke's law says:    force = k * distance
// Bernoulli's principle says:  v ^ 2 / 2 + g . h + pressure / density = constant
// so: v ^ 2 is proportional to number of steps we advance the extruder
//#define ADVANCE

#if ENABLED(ADVANCE)
  #define EXTRUDER_ADVANCE_K .0
  #define D_FILAMENT 2.85
#endif

// Implementation of a linear pressure control
// Assumption: advance = k * (delta velocity)
// K=0 means advance disabled. A good value for a gregs wade extruder will be around K=75
//#define LIN_ADVANCE

#if ENABLED(LIN_ADVANCE)
  #define LIN_ADVANCE_K 75
#endif

// @section leveling

// Default mesh area is an area with an inset margin on the print area.
// Below are the macros that are used to define the borders for the mesh area,
// made available here for specialized needs, ie dual extruder setup.
#if ENABLED(MESH_BED_LEVELING)
  #define MESH_MIN_X (X_MIN_POS + MESH_INSET)
  #define MESH_MAX_X (X_MAX_POS - (MESH_INSET))
  #define MESH_MIN_Y (Y_MIN_POS + MESH_INSET)
  #define MESH_MAX_Y (Y_MAX_POS - (MESH_INSET))
#endif

// @section extras

// Arc interpretation settings:
#define ARC_SUPPORT  // Disabling this saves ~2738 bytes
#define MM_PER_ARC_SEGMENT 1
#define N_ARC_CORRECTION 25

// Support for G5 with XYZE destination and IJPQ offsets. Requires ~2666 bytes.
//#define BEZIER_CURVE_SUPPORT

const unsigned int dropsegments = 5; //everything with less than this number of steps will be ignored as move and joined with the next movement

// @section temperature

// Control heater 0 and heater 1 in parallel.
//#define HEATERS_PARALLEL

//===========================================================================
//================================= Buffers =================================
//===========================================================================

// @section hidden

// The number of linear motions that can be in the plan at any give time.
// THE BLOCK_BUFFER_SIZE NEEDS TO BE A POWER OF 2, i.g. 8,16,32 because shifts and ors are used to do the ring-buffering.
#if ENABLED(SDSUPPORT)
  #define BLOCK_BUFFER_SIZE 16   // SD,LCD,Buttons take more memory, block buffer needs to be smaller
#else
  #define BLOCK_BUFFER_SIZE 16 // maximize block buffer
#endif

// @section serial

// The ASCII buffer for serial input
#define MAX_CMD_SIZE 96
#define BUFSIZE 4

// Transfer Buffer Size
// To save 386 bytes of PROGMEM (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
// To buffer a simple "ok" you need 4 bytes.
// For ADVANCED_OK (M105) you need 32 bytes.
// For debug-echo: 128 bytes for the optimal speed.
// Other output doesn't need to be that speedy.
// :[0,2,4,8,16,32,64,128,256]
#define TX_BUFFER_SIZE 0

// Enable an emergency-command parser to intercept certain commands as they
// enter the serial receive buffer, so they cannot be blocked.
// Currently handles M108, M112, M410
// Does not work on boards using AT90USB (USBCON) processors!
//#define EMERGENCY_PARSER

// Bad Serial-connections can miss a received command by sending an 'ok'
// Therefore some clients abort after 30 seconds in a timeout.
// Some other clients start sending commands while receiving a 'wait'.
// This "wait" is only sent when the buffer is empty. 1 second is a good value here.
//#define NO_TIMEOUTS 1000 // Milliseconds

// Some clients will have this feature soon. This could make the NO_TIMEOUTS unnecessary.
//#define ADVANCED_OK

// @section fwretract

// Firmware based and LCD controlled retract
// M207 and M208 can be used to define parameters for the retraction.
// The retraction can be called by the slicer using G10 and G11
// until then, intended retractions can be detected by moves that only extrude and the direction.
// the moves are than replaced by the firmware controlled ones.

//#define FWRETRACT  //ONLY PARTIALLY TESTED
#if ENABLED(FWRETRACT)
  #define MIN_RETRACT 0.1                //minimum extruded mm to accept a automatic gcode retraction attempt
  #define RETRACT_LENGTH 3               //default retract length (positive mm)
  #define RETRACT_LENGTH_SWAP 13         //default swap retract length (positive mm), for extruder change
  #define RETRACT_FEEDRATE 45            //default feedrate for retracting (mm/s)
  #define RETRACT_ZLIFT 0                //default retract Z-lift
  #define RETRACT_RECOVER_LENGTH 0       //default additional recover length (mm, added to retract length when recovering)
  #define RETRACT_RECOVER_LENGTH_SWAP 0  //default additional swap recover length (mm, added to retract length when recovering from extruder change)
  #define RETRACT_RECOVER_FEEDRATE 8     //default feedrate for recovering from retraction (mm/s)
#endif

// Add support for experimental filament exchange support M600; requires display
#if ENABLED(ULTIPANEL)
  // #define FILAMENT_CHANGE_FEATURE             // Enable filament exchange menu and M600 g-code (used for runout sensor too)
  #if ENABLED(FILAMENT_CHANGE_FEATURE)
    #define FILAMENT_CHANGE_X_POS 3             // X position of hotend
    #define FILAMENT_CHANGE_Y_POS 3             // Y position of hotend
    #define FILAMENT_CHANGE_Z_ADD 10            // Z addition of hotend (lift)
    #define FILAMENT_CHANGE_XY_FEEDRATE 100     // X and Y axes feedrate in mm/s (also used for delta printers Z axis)
    #define FILAMENT_CHANGE_Z_FEEDRATE 5        // Z axis feedrate in mm/s (not used for delta printers)
    #define FILAMENT_CHANGE_RETRACT_LENGTH 2    // Initial retract in mm
                                                // It is a short retract used immediately after print interrupt before move to filament exchange position
    #define FILAMENT_CHANGE_RETRACT_FEEDRATE 60 // Initial retract feedrate in mm/s
    #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
                                                // Longer length for bowden printers to unload filament from whole bowden tube,
                                                // shorter lenght for printers without bowden to unload filament from extruder only,
                                                // 0 to disable unloading for manual unloading
    #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
    #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
                                                // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
                                                // Short or zero length for printers without bowden where loading is not used
    #define FILAMENT_CHANGE_LOAD_FEEDRATE 10    // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
    #define FILAMENT_CHANGE_EXTRUDE_LENGTH 50   // Extrude filament length in mm after filament is load over the hotend,
                                                // 0 to disable for manual extrusion
                                                // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
                                                // or until outcoming filament color is not clear for filament color change
    #define FILAMENT_CHANGE_EXTRUDE_FEEDRATE 3  // Extrude filament feedrate in mm/s - must be slower than load feedrate
  #endif
#endif

/******************************************************************************\
 * enable this section if you have TMC26X motor drivers.
 * you need to import the TMC26XStepper library into the Arduino IDE for this
 ******************************************************************************/

// @section tmc

//#define HAVE_TMCDRIVER
#if ENABLED(HAVE_TMCDRIVER)

  //#define X_IS_TMC
  #define X_MAX_CURRENT 1000  //in mA
  #define X_SENSE_RESISTOR 91 //in mOhms
  #define X_MICROSTEPS 16     //number of microsteps

  //#define X2_IS_TMC
  #define X2_MAX_CURRENT 1000  //in mA
  #define X2_SENSE_RESISTOR 91 //in mOhms
  #define X2_MICROSTEPS 16     //number of microsteps

  //#define Y_IS_TMC
  #define Y_MAX_CURRENT 1000  //in mA
  #define Y_SENSE_RESISTOR 91 //in mOhms
  #define Y_MICROSTEPS 16     //number of microsteps

  //#define Y2_IS_TMC
  #define Y2_MAX_CURRENT 1000  //in mA
  #define Y2_SENSE_RESISTOR 91 //in mOhms
  #define Y2_MICROSTEPS 16     //number of microsteps

  //#define Z_IS_TMC
  #define Z_MAX_CURRENT 1000  //in mA
  #define Z_SENSE_RESISTOR 91 //in mOhms
  #define Z_MICROSTEPS 16     //number of microsteps

  //#define Z2_IS_TMC
  #define Z2_MAX_CURRENT 1000  //in mA
  #define Z2_SENSE_RESISTOR 91 //in mOhms
  #define Z2_MICROSTEPS 16     //number of microsteps

  //#define E0_IS_TMC
  #define E0_MAX_CURRENT 1000  //in mA
  #define E0_SENSE_RESISTOR 91 //in mOhms
  #define E0_MICROSTEPS 16     //number of microsteps

  //#define E1_IS_TMC
  #define E1_MAX_CURRENT 1000  //in mA
  #define E1_SENSE_RESISTOR 91 //in mOhms
  #define E1_MICROSTEPS 16     //number of microsteps

  //#define E2_IS_TMC
  #define E2_MAX_CURRENT 1000  //in mA
  #define E2_SENSE_RESISTOR 91 //in mOhms
  #define E2_MICROSTEPS 16     //number of microsteps

  //#define E3_IS_TMC
  #define E3_MAX_CURRENT 1000  //in mA
  #define E3_SENSE_RESISTOR 91 //in mOhms
  #define E3_MICROSTEPS 16     //number of microsteps

#endif

/******************************************************************************\
 * enable this section if you have L6470  motor drivers.
 * you need to import the L6470 library into the Arduino IDE for this
 ******************************************************************************/

// @section l6470

//#define HAVE_L6470DRIVER
#if ENABLED(HAVE_L6470DRIVER)

  //#define X_IS_L6470
  #define X_MICROSTEPS 16     //number of microsteps
  #define X_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
  #define X_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
  #define X_STALLCURRENT 1500 //current in mA where the driver will detect a stall

  //#define X2_IS_L6470
  #define X2_MICROSTEPS 16     //number of microsteps
  #define X2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
  #define X2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
  #define X2_STALLCURRENT 1500 //current in mA where the driver will detect a stall

  //#define Y_IS_L6470
  #define Y_MICROSTEPS 16     //number of microsteps
  #define Y_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
  #define Y_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
  #define Y_STALLCURRENT 1500 //current in mA where the driver will detect a stall

  //#define Y2_IS_L6470
  #define Y2_MICROSTEPS 16     //number of microsteps
  #define Y2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
  #define Y2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
  #define Y2_STALLCURRENT 1500 //current in mA where the driver will detect a stall

  //#define Z_IS_L6470
  #define Z_MICROSTEPS 16     //number of microsteps
  #define Z_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
  #define Z_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
  #define Z_STALLCURRENT 1500 //current in mA where the driver will detect a stall

  //#define Z2_IS_L6470
  #define Z2_MICROSTEPS 16     //number of microsteps
  #define Z2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
  #define Z2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
  #define Z2_STALLCURRENT 1500 //current in mA where the driver will detect a stall

  //#define E0_IS_L6470
  #define E0_MICROSTEPS 16     //number of microsteps
  #define E0_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
  #define E0_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
  #define E0_STALLCURRENT 1500 //current in mA where the driver will detect a stall

  //#define E1_IS_L6470
  #define E1_MICROSTEPS 16     //number of microsteps
  #define E1_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
  #define E1_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
  #define E1_STALLCURRENT 1500 //current in mA where the driver will detect a stall

  //#define E2_IS_L6470
  #define E2_MICROSTEPS 16     //number of microsteps
  #define E2_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
  #define E2_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
  #define E2_STALLCURRENT 1500 //current in mA where the driver will detect a stall

  //#define E3_IS_L6470
  #define E3_MICROSTEPS 16     //number of microsteps
  #define E3_K_VAL 50          // 0 - 255, Higher values, are higher power. Be careful not to go too high
  #define E3_OVERCURRENT 2000  //maxc current in mA. If the current goes over this value, the driver will switch off
  #define E3_STALLCURRENT 1500 //current in mA where the driver will detect a stall

#endif

/**
 * TWI/I2C BUS
 *
 * This feature is an EXPERIMENTAL feature so it shall not be used on production
 * machines. Enabling this will allow you to send and receive I2C data from slave
 * devices on the bus.
 *
 * ; Example #1
 * ; This macro send the string "Marlin" to the slave device with address 0x63 (99)
 * ; It uses multiple M155 commands with one B<base 10> arg
 * M155 A99  ; Target slave address
 * M155 B77  ; M
 * M155 B97  ; a
 * M155 B114 ; r
 * M155 B108 ; l
 * M155 B105 ; i
 * M155 B110 ; n
 * M155 S1   ; Send the current buffer
 *
 * ; Example #2
 * ; Request 6 bytes from slave device with address 0x63 (99)
 * M156 A99 B5
 *
 * ; Example #3
 * ; Example serial output of a M156 request
 * echo:i2c-reply: from:99 bytes:5 data:hello
 */

// @section i2cbus

//#define EXPERIMENTAL_I2CBUS

#endif // CONFIGURATION_ADV_H